Ace Combat - Joint Assault - Sony PSP

SP mission:

Successfully complete all missions on the Hard difficulty to unlock the SP mission.

Ace mode:

Successfully complete all missions on the Hard difficulty to unlock the Ace difficulty.

Bonus aircraft:
Successfully complete the indicated task to unlock the corresponding aircraft:
FALKEN: Successfully complete Mission SP 02.
FENRIR: Successfully complete Mission 21A in Ace mode.
Varcolac: Successfully complete Mission 21A with an "S" rank in Ace mode.
X-02: Successfully complete Mission SP 01.